package Project;

public class Jv_4_6 {
	public static void main(String[] args) {
		   int n, hap;

		   System.out.println("***** result *****");
		   n=hap=0;
		   for(n=1; n<=100; n++)
		      hap+=n;
		   System.out.println("1+2+3+...+100 = " + hap + "(for statement)");
		   n=1;
		   hap=0;
		   while(n<=100)
		     {
		       hap+=n;
		       n++;
		     }
		   System.out.println("1+2+3+...+100 = " + hap + "(while statement)");

		   n=1;
		   hap=0;
		   do {
			hap+=n;
			n++;
		      } while(n<=100);
		   System.out.println("1+2+3+...+100 = " + hap + "(do while statement)");
	}
}
